package atm;

/**
 * 超级数组
 */
public class SuperArray {
    private Object[] objects = new Object[0];
    /**增加元素到数组中*/
    public void add(Object value){
        Object [] newObjects = new Object[objects.length + 1];
        for (int i = 0;i < objects.length;i++){
            newObjects[i] = objects[i];
        }
        newObjects[newObjects.length - 1] = value;
        objects = newObjects;
    }
    /**删除指定下标的元素*/
    public void remove(int index){
      Object [] newObjects = new Object[objects.length - 1];
      for (int i = 0;i < newObjects.length;i++){
          if (i < index){
              newObjects[i] = objects[i];
          }else {
              newObjects[i] = objects[i + 1];
          }
      }
      objects = newObjects;
    }
    /**根据下标获取指定元素*/
    public Object get(int index){
      return  objects[index];
    }
    /**获取数组长度*/
    public int size(){
        return objects.length;
    }
    public static void main(String[] args) {
        SuperArray ary = new SuperArray();
        ary.add("你好");
        ary.add(250);
        ary.add(1.0);
        ary.remove(2);
        System.out.println(ary.size());
        for (int i = 0;i < ary.size();i++){
            System.out.println(ary.get(i));
        }
    }
}
